Best Technological Specification of High Speed Superplastic Bulging Under Back Pressure  

作　　者：宋玉泉 朴成春 

机构地区：[1]Superplastic Laboratory, Jilin University of Technology, Changchun 130025, PRC

出　　处：《Chinese Science Bulletin》1994年第7期609-613,共5页

基　　金：Project supported by the National Natural Science Foundation of China.

摘　　要：Superplastic alloys have very low flow stress, extraordinarily high elongation insuperplastic state, and elastic recover and static storage effect of strain hardening canhardly be found. So space parts in complex shape and high dimension accuracy maybe formed under pressure. Unfortunately, the optimum strain rate of elongation is verylow(generally below 10^-2 s^-1) even at optimum superplastic temperature, and this be-

关 键 词：SUPERPLASTICITY high SPEED BULGING TECHNOLOGICAL specification. 

分 类 号：TG115[金属学及工艺—物理冶金]